https://fire-safety.academy/w/index.php?action=history&feed=atom&title=File%3AFse-trench-effect-v4.svg 2026-11-04T15:51:45Z Revision history for this page on the wiki MediaWiki 1.43.11 https://fire-safety.academy/w/index.php?title=File:Fse-trench-effect-v4.svg&diff=2046&oldid=prev 2026-11-02T16:13:12Z

<p>Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity</p> <p><b>New page</b></p><div>== Summary ==<br /> Walls restrict the air entrained by a flame: a flame against a wall entrains from half of its perimeter, and walls and corners lengthen the flames. Based on Iqbal and Salley (2004), pp. 4-1 and 4-2.<br /> <br /> Original illustration for [[Trench effect]], level 4 Expert.<br /> <br /> * Source basis: Iqbal and Salley (2004), p. 4-1 (restriction of free air entrainment near walls and corners lengthens flames; wall flame entrains from half its perimeter) and p. 4-2 (corner fires more severe due to radiative exchange between burning walls)<br /> * Alt text: A fire in the open, against a wall and in a corner, with entrained air from all round, from half and from a quarter; the flames get longer.<br /> <br /> == Licensing ==<br /> New drawing by Fire Safety Academy. © Fire Safety Academy.</div>

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